Probability of an Event P(E)
Authored by JOMARAH BERNARDINO
Mathematics
8th Grade
CCSS covered
Used 21+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A fair die is rolled. What is the probability of getting a number “3” ?
1/6
1/2
2/3
3/2
Answer explanation
S = { 1, 2, 3, 4, 5, 6}
n(S) = 6
There is only one "3" in a die.
Tags
CCSS.7.SP.C.7A
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A fair die is rolled. What is the probability of getting a number that is even?
1/3
1/2
3/4
1/6
Answer explanation
S = {1, 2, 3, 4, 5, 6}
n(S) = 6
There are three even numbers out of six numbers in a die. These are: {2, 4, 6}
3/6 in lowest term is 1/2
Tags
CCSS.7.SP.C.7B
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A fair die is rolled. What is the probability of getting a number less than 5?
1/3
1/4
2/3
1/6
Answer explanation
S = {1, 2, 3, 4, 5, 6}
n(S) = 6
There are four numbers which are less than 5. Those are: {1, 2, 3, 4}
4/6 in lowest term is 2/3
Tags
CCSS.7.SP.C.7A
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A fair die is rolled. What is the probability of getting a number greater than 6?
1/6
2/3
1/2
0
Answer explanation
S = {1, 2, 3, 4, 5, 6}
n(S) = 6
There is NO number greater than 6 in a die.
Tags
CCSS.7.SP.C.5
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A fair die is rolled. What is the probability of getting a number that is prime?
*PRIME NUMBERS are special numbers, greater than 1, that have exactly two factors, themselves and 1.
1/2
1/3
1/4
2/3
Answer explanation
S = {1, 2, 3, 4, 5, 6}
n(S) = 6
There are three prime numbers in a die. Those are: {2, 3, 5}
3/6 in lowest term is 1/2
Tags
CCSS.7.SP.C.7B
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Fifteen identical cards are labelled 1 to 15. Find the probability of that a card drawn at random may be a number with the digit 1?
2/15
7/15
6/15
5/15
Answer explanation
S = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}
n(S) = 15
There are seven numbers with 1. Those are: {1 , 10, 11, 12, 13, 14, 15}
Tags
CCSS.7.SP.C.7B
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Fifteen identical cards are labelled 1 to 15. Find the probability of that a card drawn at random may be a number that is divisible by 5?
1/4
1/2
1/5
1/15
Answer explanation
S = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}
n(S) = 15
There are three numbers which are divisible by 5. Those are: {5, 10, 15}
3/15 in lowest term is 1/5
Tags
CCSS.7.SP.C.7B
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